Book printing special technology

One, paper security

Paper is the material basis for printing various securities. Some special papers manufactured using special processes basically have security features. The anti-counterfeiting technologies used in special papers are:

1. Water

Do not buy these 4 wooden furniture

A few days ago, the Fujian Provincial Bureau of Quality and Technical Supervision conducted a provincial-level supervision and inspection on the wooden furniture produced by enterprises in Fujian Province. The qualified rate of the product quality sampling batch was 68